A 6.5 magnitude earthquake has struck Puerto Rico, the largest one in a recent flurry of quakes that began on December 28th. A tsunami alert was initially issued, but later canceled. The Electric Power Authority reported an island-wide power outage. Earlier, a 5.8 magnitude quake collapsed five homes in the southwest coastal town of Guánica.

Most are tiny, so the number itself is meaningless. As matter of fact, the more small ones in an active zone, the safer - because they resolve the tension gradually. It's the absence you should be afraid of.